package Ep06_BinaryTree.BT21_0617;

import Ep06_BinaryTree.TreeNode;

/**
 * @author Jimmy Zhan WORKSTATION
 * @date 2023/6/12 19:08
 * 说明： 力扣617，合并二叉树
 */

public class Mine {
    public TreeNode mergeTrees(TreeNode root1, TreeNode root2) {
        if (root1 == null) return root2;
        if (root2 == null) return root1;

        root1.val = root1.val + root2.val;
        root1.left = mergeTrees(root1.left, root2.left);
        root1.right = mergeTrees(root1.right, root2.right);
        return root1;
    }
}
